Non-destructive entry first, always - and we re-key Schlage, Kwikset, and Baldwin locks on the spot while you watch
You get a price before we start. It does not change when we arrive. No surprises.
Fast, Reliable Lock Installation & Rekey Across Northglenn
Lock installation and rekeying in Northglenn typically runs $25-$45 per cylinder for a standard rekey, $75-$150 for new deadbolt installation, and $180-$400 for smart lock installation with existing hardware. Most jobs in Northglenn are completed the same day we hear from you, usually within 60-90 minutes of your call. If you bought a home here and never rekeyed it, the builder’s key from 1968 may still turn your front door. Call (331) 310-8471 and we’ll give you a written price before anyone gets in the van.
Northglenn is our regular ground. We know the split-levels off Huron Street, the ranch rows near the rec center, and the townhome clusters east of I-25. We know what a 1965 Kwikset knob feels like after 60 Colorado winters, and we know what it takes to make it right. The dispatcher names the price on the phone. The technician is not permitted to change it at the door. That rule has been in place since 2002 and it applies to every job we do in Northglenn, no exceptions.
Why Novak Lock & Security Is Northglenn’s Preferred Lock Installation & Rekey Company
Daniel Novak started Novak Lock & Security on one principle: the price on the phone is the price on the invoice. That’s Haven Standard Clause 1, and it’s the reason homeowners in Northglenn call us instead of gambling on an unknown. We answer the phone with a live person, 24 hours a day. You don’t get a call center script or a callback estimate. You get a dispatcher who knows Northglenn, quotes the job in dollars, and sends a background-checked, uniformed technician who is contractually bound to honor that number.
We carry a documented photo record of every visit, taken before and after the work, and leave it with you on site. Not as an upgrade. As standard procedure. Since 2002, our technicians have installed or serviced more than 60,000 locks, keys, and systems, every one with a written price before we started and a written record when we left. The 365-Day Done Right Promise backs all of it: if the lock installation or rekey isn’t done right, we make it right at no charge. That’s the whole argument for calling us in Northglenn. You can see what you’re buying before you spend a dollar.
Our Lock Installation & Rekey Services in Northglenn

Smart Lock Installation
Smart lock installation in Northglenn typically runs $180-$400 depending on the lock model and the condition of your door. The biggest variable here is the frame. A 1968 aluminum door frame that has been through 50 freeze-thaw cycles may not hold a smart lock deadbolt cleanly without strike plate realignment. We check the frame, adjust the alignment, and install the lock so the motor isn’t fighting the door every time it cycles. We work with Yale, Baldwin, and Schlage smart locks as well as app-based systems, and we configure the lock with your existing deadbolt hardware so you’re not carrying a key plus a phone plus a fob.

Keyless Entry
Keyless entry installation in Northglenn gives you a coded door without a key to lose. A typical keypad deadbolt install runs $150-$350 with hardware. For Northglenn rental owners, this is often the cleanest fix for constant tenant turnover: you delete the code between tenants instead of paying for a rekey every time. If the existing strike plate has drifted from the original 1960s aluminum frame movement, we realign it as part of the install so the deadbolt throws fully without binding.

Keypad Lock
A keypad lock install in Northglenn follows the same pattern: we mount the lock, align the strike plate to the existing frame, and show you how the code programming works before we leave. If your Northglenn door currently has a Kwikset knob keyed to one set and a Schlage deadbolt keyed to another, we can consolidate everything to a single keypad/keyed cylinder so the front door locks and unlocks with one system instead of two. The written price covers the hardware, the install, and the alignment. Nothing changes at the door.

Key Duplication
Standard key duplication in Northglenn runs $3-$8 per key at the door. High-security brands like Mul-T-Lock and Medeco require a signature card and factory-authorized duplication, which runs $25-$60 per key depending on the cylinder. We stock blanks for Kwikset, Schlage, and most common Northglenn originals on the truck, so most duplicates are cut on site. If you’re not sure whether a key can be copied, bring it to us and we’ll tell you in plain terms: some builder’s keys from 1960s Northglenn construction were restricted at the factory and can’t be duplicated without a card. We’ll show you the difference and walk you through your options.

What happens when you call
- 1
A real person answersNo phone trees - you reach a local pro.
- 2
You get an upfront price rangeHonest numbers before anyone is dispatched.
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A background-checked tech heads outLicensed & insured, dispatched right away.
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You approve before work beginsNothing starts until you say go.
Trusted Brands We Service in Northglenn
We’re factory-authorized on locks from Baldwin, Mul-T-Lock, Sargent, and Schlage, and we service the full range from entry-grade Kwikset to high-security Medeco and Mul-T-Lock cylinders that cannot be picked or bumped by standard tools. For Northglenn customers that means something specific: we stock the parts that match the city’s older housing stock. We carry Kwikset 400-series replacement cylinders, Schlage single-cylinder deadbolt internals, and aftermarket strike plates sized for 1960s aluminum frames. If your lock is original to a 1965 Northglenn build, we’re not ordering parts and coming back next week. We’re fixing it on the first visit.
Common Lock Installation & Rekey Problems We See in Northglenn Homes

- Builder’s key still active: Many original Northglenn homes were never rekeyed after the initial 1959-1974 build-out. The builder’s master key, or a common construction key, may still open your front door decades later. We test for this on every rekey and replace the cylinder if the old keyway is still vulnerable.
- Mixed hardware generations: Rental turnover in Northglenn since the 1990s left a lot of doors with a rekeyed knob keyed to one set and an aftermarket deadbolt keyed to another. Residents are carrying two keys and still can’t throw the deadbolt from outside. We consolidate the hardware into a single keyway, so one key works everything.
- Aluminum frame drift: Fifty-plus-year-old aluminum frames along Huron, Malley, and around Northglenn High have expanded and contracted so many times that the strike plate has migrated a quarter-inch. A newly installed deadbolt binds or won’t throw. We realign the plate, adjust the frame, and the lock works like it should.
- Winter keyway freeze: Northglenn sits at roughly 5,400 feet, and rapid Chinook warm-ups can swing temperatures 40°F in a morning. That cycle forces moisture into keyways, which freezes into an immobilized cylinder. We clean, lubricate, and often replace older cylinders with freeze-resistant hardware, so your key still turns in February.
The Northglenn Reality: Why a Simple Rekey Is Rarely Simple Here
Because nearly every residential block in Northglenn was built within one narrow 15-year window, 1959 through roughly 1974, locksmiths here can predict with unusual confidence what they’ll find at the door. It’s usually a Kwikset 400-series knob, or its first replacement, paired with an early-generation deadbolt. Often the two are keyed differently. Multiple tenant turnovers layered mismatched hardware on top of original cylinders. And the aluminum front door frame has spent six decades expanding and contracting through Front Range freeze-thaw cycles, which means the strike plate has drifted far enough that the deadbolt no longer lines up. A simple rekey in Northglenn turns into a full hardware realignment more often than anywhere else on our schedule.
We recently rekeyed a split-level off Huron Street where a tenant turnover left a Kwikset 400-series knob keyed to one set and an early Schlage single-cylinder deadbolt keyed to another. The aluminum front door frame had shifted enough over 60 years that the deadbolt was binding. After we installed new pin and tumbler cylinders and upgraded the strike plate, we adjusted the frame alignment until the bolt threw cleanly. One call, one key, no more fight at the door.
That’s the Northglenn difference. A locksmith from another metro might arrive expecting a standard rekey, discover the frame drift, and leave you with a bill and a door that still sticks. We expect it. We quote for it. And we fix it the first visit. That’s why a written price matters here: you know before we arrive that the realignment is included, not added on.
Pricing for Lock Installation & Rekey in Northglenn, CO

Here’s what you can expect to pay in Northglenn, in real numbers. A standard rekey runs $25-$45 per cylinder. New deadbolt installation runs $75-$150 including hardware. Smart lock installation runs $180-$400 depending on the model and whether the frame needs realignment. Keyless entry and keypad lock installation run $150-$350 with hardware. High-security cylinder work on Mul-T-Lock, Medeco, or Baldwin hardware runs $80-$200 per cylinder, and key duplication for restricted keys runs $25-$60 per key. These are the prices on the phone, and they are the prices on the invoice. No call-out surcharge gets added when the technician arrives. No “fuel fee” materializes at the door. If the frame needs realignment, it’s in the written scope before anyone starts. Call (331) 310-8471 and we’ll name the exact price for your Northglenn property in under five minutes.
We Also Serve Cities Near Northglenn
Our same team covers Northglenn and the surrounding metro, including Denver, Aurora, Lakewood, and Thornton. If you have a rental in Northglenn and an office in Thornton, we can schedule both on the same written estimate. The same Clause 1 applies: the phone price is the invoice price, in every city we work.
Serving Northglenn, CO - Our Local Coverage Area

We’re based in the Northglenn area and know this community well. Use the map below to see our service coverage - if you’re nearby, we can almost certainly help.
FAQs - Lock Installation & Rekey in Northglenn
Most original 1960s Kwikset knobs and deadbolts in Northglenn can still be rekeyed, but we usually recommend replacing the cylinders and upgrading the strike plate at the same time. The internal springs and pins in a 55-year-old lock are often worn, and a freshly rekeyed cylinder in a tired lock body can fail within months. A new cylinder runs $25-$45, and a replacement deadbolt with hardened steel components runs $75-$150 installed. If the frame has drifted, that’s included in the written scope. Call (331) 310-8471 and we’ll quote both options honestly, with no pressure toward the more expensive one.
You can’t tell by looking at the lock, and that’s the problem. The only reliable test is to have a locksmith check the cylinder for construction-key pins or a builder’s master wafer, the two mechanisms that let a common key open every door in a 1960s Northglenn subdivision. If your door was never rekeyed after the original build, or after the last tenant turnover, the old key may still work. We test every cylinder during a rekey and replace anything that still carries a builder’s keyway. A rekey and test runs $25-$45 per cylinder.
Yes. Northglenn’s freeze-thaw cycles, including rapid Chinook warm-ups that swing temperatures 40°F in hours, cause aluminum door frames and lock cylinders to expand and contract. A smart lock’s motorized deadbolt has tighter tolerances than a manual throw, so it jams when the frame shifts even a few millimeters in cold weather. The fix is usually a strike plate realignment and a frame adjustment, not a new lock. We do this work as part of smart lock installation in Northglenn, and we test the lock through a full cycle before we leave. Call (331) 310-8471 for a written price.
Yes. A landlord master key system in Northglenn typically runs $150-$350 for the cylinder work, plus the hardware if you need new locks added. We set it up so your master key opens every door, and each tenant key opens only their unit, or only the door you assign. When a tenant leaves, you don’t rekey or replace cylinders. You simply issue a new tenant key from the same system. For Northglenn rentals with multiple generations of mismatched hardware, we consolidate the locks onto one keyway as part of the setup, so the whole property works on a single organized system. We’ll give you a written scope and a flat per-lock price before any work starts.
In Northglenn, it’s usually the frame. The original aluminum door frames from the 1959-1974 build window have drifted through decades of thermal movement, and the strike plate no longer lines up with the deadbolt. The bolt hits the plate or the frame and stops partway. We fix this by realigning the plate, adjusting the frame, and if the deadbolt internals are worn, replacing the cylinder or the whole deadbolt. A strike plate realignment runs $50-$90. If we find the lock itself is failing, we quote the replacement in writing before we touch it. Call (331) 310-8471 and we’ll diagnose it over the phone, then confirm on site.
Get a Written Price for Lock Installation or Rekey in Northglenn

If your Northglenn door still has the builder’s key, a mismatched deadbolt, or a frame that fights the lock, call us. We’ll tell you what we think you need, what it costs, and what the technician will do when they arrive. The price we state on the phone is the price on the invoice. No add-ons. No pressure. Just a real locksmith named on the van and a written record when the work is done. Call (331) 310-8471 for a free estimate. Daniel Novak and the team at Novak Lock & Security are ready whenever you are.
Written by Daniel Novak, Owner at Novak Lock & Security, serving Northglenn, CO since 2002.






